"How do I ZScript?"

Death Egg · Post by **Death Egg** » Sun Apr 16, 2017 11:44 pm

From this tutorial of converting Sonic physics to other engines:

p -= ((p div 0.125) / 256); //"div" is division ignoring any remainder

What would the equivalent for "div" in this situation be for ZScript?

AFADoomer · Post by **AFADoomer** » Sun Apr 16, 2017 11:50 pm

You'll want to cast that portion of the equation as an int and use normal division.

Something like:

Code: Select all

p -= int(p / 0.125) / 256;

That'll essentially force the engine to divide p by 0.125, then disregard the non-integer part of the result (the remainder).

Post by **Graf Zahl** » Mon Apr 17, 2017 5:21 pm

Why not multiply by 8?

Matt · Post by **Matt** » Mon Apr 17, 2017 8:02 pm

How do you get a player's name?

Gutawer · Post by **Gutawer** » Tue Apr 18, 2017 11:02 am

Vaecrius wrote:How do you get a player's name?

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player.GetUserName()

Gutawer · Post by **Gutawer** » Tue Apr 18, 2017 4:53 pm

Is it possible to offset all attacks on a PlayerPawn by a certain angle/pitch, sorta like you can change the Z offset with AttackZOffset?

Post by **Major Cooke** » Tue Apr 18, 2017 6:43 pm

Only via the functions like A_FireProjectile's parameters. You'll have to set up your own system, aka no layman way around it.

Death Egg · Post by **Death Egg** » Fri Apr 21, 2017 10:44 am

How can I stop a boolean value from changing under certain conditions? In this example while the player is crouched using Nash's Side Scrolling engine, I don't want the player to be able to change the direction they're facing on a whim.

Post by **Major Cooke** » Fri Apr 21, 2017 12:37 pm

Make a function that will only change it based on conditions which you set inside of it. If you mean to stop external access from changing it, make the boolean private in addition, and ensure the function is accessible.

This is assuming it's a completely you-made boolean. If you mean an internal boolean, you'll have to get a little more creative.

Post by **Nash** » Fri Apr 21, 2017 12:44 pm

Death Egg wrote:How can I stop a boolean value from changing under certain conditions? In this example while the player is crouched using Nash's Side Scrolling engine, I don't want the player to be able to change the direction they're facing on a whim.

Add a !bIsCrouching condition to the part that sets the player's direction (it's close to the top of MoveSideScrollerPlayer)

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    void MoveSideScrollerPlayer(void)
    {
        // LEFT/RIGHT MOVEMENT /////////////////////////////////////////////////

        double sideInput = GetPlayerInput(INPUT_SIDEMOVE);
        double normalizedSideInput;

        /*
        // You can use the following formula for analog player movement
        // I have analog movement disabled on purpose
        double normalizedInput = SideMove1 * sideInput / 10240.;
        */

        if (sideInput < 0 && !bIsCrouching)
        {
            dir = DIR_Left;
            normalizedSideInput = -SideMove1;
        }
        else if (sideInput > 0 && !bIsCrouching)
        {
            dir = DIR_Right;
            normalizedSideInput = SideMove1;
        }

Can also be done this way

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        if (!bIsCrouching)
        {
            if (sideInput < 0)
            {
                dir = DIR_Left;
                normalizedSideInput = -SideMove1;
            }
            else if (sideInput > 0)
            {
                dir = DIR_Right;
                normalizedSideInput = SideMove1;
            }
        }

Matt · Post by **Matt** » Sat Apr 22, 2017 12:42 am

How do you tell if a player is in god mode? binvulnerable and !bshootable don't work and I'm out of ideas.

Post by **Nash** » Sat Apr 22, 2017 12:50 am

I think there's a variable called cheatflags, I don't exactly remember, do a global search for CF_ and you'll see how it's used throughout the engine.

Kinsie · Post by **Kinsie** » Sat Apr 22, 2017 12:56 am

Vaecrius wrote:How do you tell if a player is in god mode? binvulnerable and !bshootable don't work and I'm out of ideas.

Nash wrote:I think there's a variable called cheatflags, I don't exactly remember, do a global search for CF_ and you'll see how it's used throughout the engine.

All of the cheat flags are listed in zscript/constants.txt, under "enum EPlayerCheats".

Matt · Post by **Matt** » Sat Apr 22, 2017 1:25 am

player.cheats lets me access it. Thanks!

D2JK · Post by **D2JK** » Mon Apr 24, 2017 7:55 am

I've been away for a few months, so I was wondering: using the current version, is it now possible to write a "public" or "global" function that can be called by any actor? I vaguely recall there was some discussion about these months ago and that they might have been also called static functions back then, but I couldn't really find anything useful by searching.

Basically, I want to write a function once and only once, and then call it from any actor without having to copy the function code needlessly.

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